CN203081636U

CN203081636U - Air-cooled diesel engine safety starter

Info

Publication number: CN203081636U
Application number: CN2013200711061U
Authority: CN
Inventors: 白文广
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-02-07
Filing date: 2013-02-07
Publication date: 2013-07-24
Anticipated expiration: 2023-02-07

Abstract

The utility model discloses an air-cooled diesel engine safety starter which comprises an outer shell and a rotary shaft, wherein the rotary shaft is rotatably connected to the center of the bottom surface of the outer shell, is a hollow shaft, and is internally and fixedly provided with a mandrel; the rotary shaft is sequentially provided with a driven gear, a ratchet wheel, a volute spiral spring fixing plate, a volute spiral spring and a starting claw seat; the driven gear is meshed with a pretightening gear; the center of the pretightening gear is provided with a pretightening shaft; one end of the pretightening shaft is supported to the volute spiral spring fixing plate, and the other end of the pretightening shaft extends out of the outer shell to be taken as a pretightening end; a baffle block is also sleeved on the pretightening shaft; the edge of the baffle block is provided with a clamp gear which is arranged vertical to the end surface of the baffle block and is used for locking the rotation of the driven gear; the baffle block is also provided with a pull wire fixing end; the end surface of the volute spiral spring fixing plate, which is opposite to the bottom surface of the outer shell, is provided with a pull wire clamp opening; a first pull wire is fixed on the fixed end of the pull wire; and the first pull wire passes through the pull wire clamp opening, extends outside the outer shell, and is connected to a locomotive shifter. The air-cooled diesel engine safety starter provided by the utility model prevents injury accident when a diesel engine is started in non-neutral gear, improves the safety coefficient, is simple in structure, and is low in cost.

Description

The air-cooled diesel engine safety starter

Technical field

The utility model relates to the diesel engine starting technical field, especially a kind of air-cooled diesel engine safety starter.

Background technique

Development along with agricultural economy, the farm mechanization degree progressively improves, agricultural cultivated machine is more and more universal, its power source is a diesel engine, diesel engine is that burning diesel oil obtains exergonic motor, it is big that it has power, thermal efficiency height, advantages such as economic performance is good, diesel engine must can make it enter operating condition by a cover starting mechanism before work, existing diesel engine starting device has the hand starting of employing and electricity to start two kinds, though the electricity start mode is convenient, but complex structure, and also inconvenience aspect maintenance, and adopt traditional hand starting pattern, the starting dog that is starter can snap onto in the diesel engine pawl dish, and then realize that hand-operated starter drives diesel engine starting, but find in actual applications, because personnel are when the starting diesel engine, often forget and put into gear, promptly gear is hung over and reverse gear or forward gear, but not neutral, at this moment just be very easy to occur personnel with diesel engine starting after, vehicle directly bumps against on the person, cause serious injury accident, therefore how to adjust design and make that the promptly convenient safety again of diesel engine starting is the problem that present industry needs to be resolved hurrily.

The model utility content

The technical problems to be solved in the utility model is: in order to overcome in the prior art locomotive starting diesel engine when the non-neutral personnel's injury accident takes place easily, a kind of air-cooled diesel engine safety starter is provided, this starter only allows could start when neutral, other gears all can't start diesel engine, with this injury accident of avoiding personnel's misoperation to cause.

The technological scheme that its technical problem that solves the utility model adopts is: a kind of air-cooled diesel engine safety starter, comprise shell and the rotating shaft that is rotationally connected with shell bottom center, and described rotating shaft is a hollow shaft, its internal fixation is provided with mandrel;

Driven gear, ratchet, spiral spring fixed plate, spiral spring and starting dog seat are installed in the described rotating shaft successively;

Described spiral spring fixed plate is fixedlyed connected with outer casing inner wall;

Be engaged with the pretension gear on the described driven gear, described pretension Gear center is provided with pre-mandrel, described pre-mandrel one end bearing is in the spiral spring fixed plate, the other end stretches out in shell and makes the pretension end, on described pre-mandrel, also be set with a block, described block edge has a latch that is used to pin the driven gear rotation perpendicular to the setting of block end face, also has the backguy fixed end on the described block, the spiral spring fixed plate is provided with the backguy bayonet socket over against the end face of shell bottom surface, described backguy fixed end is fixed with first backguy, and first backguy is passed the backguy bayonet socket and passed shell and be connected in the locomotive selector; When the gear of locomotive is positioned at forward gear or retreats retaining, because the first backguy interlock on the locomotive selector is on block, therefore at this moment the latch on the block can snap in the teeth groove of driven gear, if personnel utilize handle to remove to shake the pretension end and tighten spiral spring, be stuck owing to driven gear so, nature can't rotatory handling so, operator just can expect that naturally gear is not on neutral, therefore can go the gear of locomotive is transferred to neutral, just can avoid personnel's injury accident of causing because of the starting of non-neutral thus, otherwise, if at neutral gear position, then the latch of block can not snap in the teeth groove of driven gear, and nature can start smoothly.

Described ratchet end face is fixed in the driven gear end face, is engaged with ratchet on the hook tooth, and described ratchet center is provided with pawl axis, and pawl axis one end bearing is in the spiral spring fixed plate, and the other end stretches out in shell and makes starting end outward;

Described spiral spring the inner is connected in rotating shaft, and the spiral spring outer end is fixed on the spiral spring fixed plate;

Be evenly equipped with at least two rotatable starting dogs on the end face of described starting dog seat, be provided with the starting dog fixed plate that is fixedly installed in the rotating shaft between the starting dog, be stamped the pawl dish that is coaxially installed on the mandrel on the starting dog seat, described pawl dish side is equipped with friction plate and pad successively, and pawl dish outer wall is provided with and the corresponding pawl mouth of starting dog.

As further improvement of the utility model; described starting end top is covered with a containment vessel; have the starting hole on the described containment vessel; described starting hole is over against the starting end top; be hinged with the shielding plate that is used to block the starting hole in containment vessel inside; described shielding plate end is connected to second backguy; the second backguy other end passes containment vessel and is connected in the locomotive selector; this improvement mainly focuses on the restriction to starting end; because the pretension end is the process that spiral spring is tightened; and starting end is the process that discharges the spiral spring elastic potential energy, therefore as long as install a containment vessel additional on starting end, when locomotive during at the non-NULL gear; the starting hole sheet that is blocked covers in; this moment, handle can't extend in the starting hole, just can't start diesel engine naturally, avoided because of start to walk personnel's injury accident of causing of non-neutral with this.

In order to solve the flimsy problem that rigid impact causes between starting dog and the diesel engine starting pawl dish, can adopt following dual mode:

A kind of mode, two pieces of bearing pins of fixed installation on the ratchet end face, two pieces of bearing pins are about the revenue centre symmetry of ratchet, the end face of described driven gear is provided with two arc-shaped slots about the revenue centre symmetry of driven gear, and described ratchet is inlaid in the corresponding arc-shaped slot by described two pieces of bearing pins.

Another kind of mode, two pieces of bearing pins of fixed installation on the driven gear end face, two pieces of bearing pins are about the revenue centre symmetry of driven gear, and the end face of described ratchet is provided with two arc-shaped slots about the revenue centre symmetry of ratchet, and described two pieces of bearing pins are inlaid in the corresponding arc-shaped slot.

Above dual mode has all been realized the purpose of ratchet and the asynchronous rotation of driven gear, promptly can swing each other and skid, therefore its principle is as follows, the utility model is by promptly tightening the spiral spring tension process of clockwork spring in advance, then because the cause of click, ratchet is limited to be fixed, and driven gear can rotate a bit of distance under the effect of the elastic potential energy of spiral spring, and this a bit of distance just can realize starting dog is sent in the hole of the starting dog dish on the diesel engine smoothly, this step promptly earlier the prepackage starting dog on diesel engine in the starting dog dish, and then unclamp ratchet, and the elastic potential energy of spiral spring is all discharged, drive the rotation at full speed of diesel engine flywheel again with this, and then starting diesel engine, by such method, the high-intensity direct rigid impact of avoiding has well prolonged service life of equipment.

Further, the central angle of described arc-shaped slot is 80 ~ 120 °.

Further, described starting dog seat is that profile is connected or key connects with rotating shaft.

As preferably, described starting dog has 2, and described pawl mouth has 2.

Described pretension gear and pre-mandrel are integral type or are connected by key.

The beneficial effects of the utility model are to the utlity model has following advantage:

1, Security: the utility model utilizes the latch on the block to block driven gear under non-neutral situation, make whole starter to turn round, can also starting end be blocked in conjunction with shielding plate, make handle can't be placed on the starting end, limit starting under the non-neutral situation with this, solved the safety problem that starting brings under the non-neutral well, be skillfully constructed, low cost of manufacture has improved the Security that the user uses dramatically;

2, long service life: traditional diesel engine hand starting mode is under high-speed case, the centrifugal action of utilizing the rotating shaft rotation to cause, starting dog is got rid of in the starter panel hole of diesel engine, the utility model changes traditional originate mode, by in advance the spiral spring tension promptly being tightened the process of clockwork spring, then because the cause of click, ratchet is limited to be fixed, and driven gear can rotate a bit of distance under the effect of the elastic potential energy of spiral spring, and this a bit of distance just can realize starting dog is sent in the hole of the starting dog dish on the diesel engine smoothly, this process impact force is very little, influence to each part can be ignored, this step promptly earlier the prepackage starting dog on diesel engine in the starting dog dish, and then unclamp ratchet, the elastic potential energy of spiral spring is all discharged, drive the rotation at full speed of diesel engine flywheel again with this, and then the starting diesel engine.Therefore the utility model changes traditional hand starting thinking, earlier starting dog is packed on the diesel engine in the starting dog dish hole, the drive diesel engine that runs up again starts, rather than directly under high-speed case, starting dog sent on the diesel engine in the starting dog dish hole, the starting dog that always perplexs people and the problem of the rigid impact of diesel engine starting pawl dish have been solved dexterously, improved the working life of equipment, and also improved the Security that equipment uses.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the utility model embodiment 1 a tomograph;

Fig. 2 is three-dimensional explosive view of the embodiment 1;

Fig. 3 is the plan view of embodiment 1 cut-away view;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is embodiment's 2 an of the present utility model tomograph;

Fig. 6 is embodiment's 2 an of the present utility model three-dimensional explosive view;

Fig. 7 is a containment vessel plan view of the present utility model;

Fig. 8 is a containment vessel rear view of the present utility model;

Fig. 9 is the structural representation of block of the present utility model;

Figure 10 is the structural representation of driven gear of the present utility model.

Among the figure: 1. shell, 2. rotating shaft, 3. mandrel, 4. driven gear; 41. arc-shaped slot, 5. ratchet, 6. spiral spring fixed plate, 7. spiral spring; 8. starting dog seat, 9. pretension gear, 10. pre-mandrel; 101. the pretension end, 11. blocks, 111. latches; 112. the backguy fixed end, 12. backguy bayonet sockets, 13. first backguys; 14. ratchet, 15. pawl axis, 151. starting ends; 16. starting dog, 17. starting dog fixed plates, 18. pawl dishes; 181. the pawl mouth, 19. friction plates, 20. pads; 21. containment vessel, 211. starting holes, 22. shielding plates; 23. second backguy, 24. bearing pins, 25. spring boxs.

Embodiment

In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic representation of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.

Embodiment 1

With reference to figure 1 Fig. 2 Fig. 3 Fig. 4, the utility model comprises shell 1 and the rotating shaft 2 that is rotationally connected with shell bottom center, and rotating shaft 2 is a hollow shaft, and its internal fixation is provided with mandrel 3;

Driven gear 4, ratchet 5, spiral spring fixed plate 6, spiral spring 7 and starting dog seat 8 are installed in the rotating shaft 2 successively;

Spiral spring fixed plate 6 is fixedlyed connected with shell 1 inwall;

Be engaged with pretension gear 9 on the driven gear 4, pretension gear 9 centers are provided with pre-mandrel 10, pre-mandrel 10 1 end bearings are in spiral spring fixed plate 6, the other end stretches out in shell 1 and makes pretension end 101, on pre-mandrel 10, also be set with a block 11, as shown in Figure 9, block 11 edges have a latch 111 that is used to pin driven gear 4 rotations perpendicular to block 11 end face settings, also has backguy fixed end 112 on the block 11, spiral spring fixed plate 6 is provided with backguy bayonet socket 12 over against the end face of shell 1 bottom surface, backguy fixed end 112 is fixed with first backguy, 13, the first backguys 13 and passes backguy bayonet socket 12 and pass shell 1 and be connected in the locomotive selector;

Ratchet 5 end faces are fixed in driven gear 4 end faces, are engaged with ratchet 14 on ratchet 5 teeth, and ratchet 14 centers are provided with pawl axis 15, and pawl axis 15 1 end bearings are in spiral spring fixed plate 6, and the other end stretches out in the shell 1 outer starting end 151 of doing;

Spiral spring 7 the inners are connected in rotating shaft 2, and spiral spring 7 outer ends are fixed on the spiral spring fixed plate 6, and spiral spring also is covered with a spring box 25 outward;

Be evenly equipped with two rotatable starting dogs 16 on the end face of starting dog seat 8, on the starting dog 16 torsion spring is housed, be provided with the starting dog fixed plate 17 that is fixedly installed in the rotating shaft 2 between the starting dog 16, starting dog fixed plate 17 inward at both ends depression, middle to outer lug, be bow-tie shape, be stamped the pawl dish 18 that is coaxially installed on the mandrel 3 on the starting dog seat 8, pawl dish 18 sides are equipped with friction plate 19 and pad 20 successively, be locked on the mandrel 3 by nut pad 20 is firmly pushed down friction plate 19, friction plate 19 and pawl dish 18 are steadily fitted, and pawl dish 18 outer walls are provided with and starting dog 16 corresponding pawl mouths 181.Here since rotating shaft 2 when rotating, mandrel 3 is fixed, the rotation of rotating shaft 2, cause the rotation of starting dog seat 8, and then cause the rotation of pawl dish 18, but by the effect of friction plate 19, the rotating speed of pawl dish 18 will be low many, so just starting dog 16 can be released smoothly, promptly be the process that starting dog 16 launches, and so just starting dog 16 can be stretched in the hole of diesel oil starting dog dish smoothly.Behind diesel engine starting, can starting dog 16 be regained by pawl dish 18 and friction plate 19 and make it to break away from diesel engine starting pawl dish.

In the present embodiment when the gear of locomotive is positioned at forward gear or retreat retaining, because first backguy, 13 interlocks on the locomotive selector are on block 11, therefore at this moment the latch 111 on the block 11 can snap in the teeth groove of driven gear 4, if personnel utilize handle to remove to shake pretension end 101 and tighten spiral spring 7, be stuck owing to driven gear 4 so, nature can't rotatory handling so, operator just can expect that naturally gear is not on neutral, therefore can go the gear of locomotive is transferred to neutral, just can avoid personnel's injury accident of causing because of the starting of non-neutral thus, otherwise, if at neutral gear position, then the latch 111 of block 11 can not snap in the teeth groove of driven gear 4, and nature can start smoothly.

Embodiment 2

As Fig. 5 Fig. 6; embodiment 2 is the further improvement on embodiment 1 basis; starting end 151 tops are covered with a containment vessel 21; shown in Figure 8 as Fig. 7; have starting hole 211 on the containment vessel 21, starting hole 211 is hinged with the shielding plate 22 that is used to block starting hole 211 over against starting end 151 tops in containment vessel 21 inside; shielding plate 22 ends are connected to second backguy, 23, the second backguys, 23 other ends and pass containment vessel 21 and be connected in the locomotive selector.This improvement mainly focuses on the restriction to starting end 151; because pretension end 101 is processes that spiral spring 7 is tightened; and starting end 151 is the processes that discharge spiral spring 7 elastic potential energys; therefore as long as on starting end 151, install a containment vessel 21 additional; when locomotive during at the non-NULL gear, rising opens one's mouth, and the sheet that is blocked covers in, and this moment, handle can't extend in the starting hole 211; naturally just can't start diesel engine, avoid personnel's injury accident of causing because of the starting of non-neutral with this.

On the basis of embodiment 1 and 2, in order to solve the flimsy problem that rigid impact causes between starting dog and the diesel engine starting pawl dish, the utility model embodiment 3 and embodiment 4 set forth:

Embodiment 3

As shown in figure 10, two pieces of bearing pins 24 of fixed installation on ratchet 5 end faces, two pieces of bearing pins 24 are about the revenue centre symmetry of ratchet 5, the end face of driven gear 4 is provided with two arc-shaped slots 41 about the revenue centre symmetry of driven gear 4, two pieces of bearing pins 24 that ratchet 5 passes through are inlaid in the corresponding arc-shaped slot 41, the central angle of arc-shaped slot 41 is 80 °, and ratchet 5 is provided with torsion spring, can make things convenient for ratchet 5 return under the effect of torsion spring like this.

Embodiment 4

Two pieces of bearing pins 24 of fixed installation on driven gear 4 end faces, two pieces of bearing pins 24 are about the revenue centre symmetry of driven gear 4, the end face of ratchet 5 is provided with two arc-shaped slots 41 about the revenue centre symmetry of ratchet 5, two pieces of bearing pins 24 be inlaid in the corresponding arc-shaped slot 41, the central angle of arc-shaped slot 41 is 120 °, ratchet 5 is provided with torsion spring, can make things convenient for ratchet 5 return under the effect of torsion spring like this.This embodiment only opens arc-shaped slot 41 to ratchet 5, promptly exchanges mutually, schemes not shown.

embodiment 3 is identical with 4 operation principle, the position that only is arc-shaped slot 41 is different, set forth principle with embodiment 3, as shown in Figure 2, at first, rocking handle is sleeved on pretension end 101, then clockwise rotate, pretension gear 9 also and then rotates, driven gear 4 rotates counterclockwise, driven gear 4 utilizes two bearing pins 24 to drive ratchet 5 and and then rotates counterclockwise, after scroll spring 7 tightens up, rocking handle stops operating, at this moment, under the elastic potential energy effect of scroll spring 7, driven gear 4 can be to clockwise rotate (at this moment ratchet 5 does not rotate) under the effect of ratchet 14, when turning to the other end of arc-shaped slot 41, driven gear 4 also no longer rotates under the effect of ratchet 14, at this moment, rotating shaft 2 and driven gear 4 have turned over the angle in arc-shaped slot 41, effect by such rotational angle and friction plate 19, 2 starting dogs 16 of the present utility model are entered in the hole of the starting dog dish on diesel engine smoothly in advance, therefore, by arc-shaped slot 41, allow rotating shaft 2 first rotate a bit of distance, can complete starting dog 16 in this process stretches in diesel engine starting pawl dish, and then unclamp ratchet 14, thoroughly discharge the elastic potential energy of scroll spring 7, the rotating shaft 2 starting diesel engine that runs up, thereby reach the effect of eliminating the rigid impact of starting dog dish on starting dog 16 and diesel engine, improve service life of equipment.

The quantity of starting dog 16 of the present utility model is not limited to the embodiment in this specification, can carry out different choice according to different needs.

With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this model utility technological thought.The technical scope of this model utility is not limited to the content on the specification, must determine its technical scope according to the claim scope.

Claims

1. air-cooled diesel engine safety starter is characterized in that: comprise shell (1) and be rotationally connected with the rotating shaft (2) of shell bottom center, described rotating shaft (2) is a hollow shaft, and its internal fixation is provided with mandrel (3);

Driven gear (4), ratchet (5), spiral spring fixed plate (6), spiral spring (7) and starting dog seat (8) are installed in the described rotating shaft (2) successively;

Described spiral spring fixed plate (6) is fixedlyed connected with shell (1) inwall;

Be engaged with pretension gear (9) on the described driven gear (4), described pretension gear (9) center is provided with pre-mandrel (10), described pre-mandrel (10) one end bearings are in spiral spring fixed plate (6), the other end stretches out in shell (1) and makes pretension end (101), on described pre-mandrel (10), also be set with a block (11), described block (11) edge has a latch (111) that is used to pin driven gear (4) rotation perpendicular to block (11) end face setting, also has backguy fixed end (112) on the described block (11), spiral spring fixed plate (6) is provided with backguy bayonet socket (12) over against the end face of shell (1) bottom surface, described backguy fixed end (112) is fixed with first backguy (13), and first backguy (13) is passed backguy bayonet socket (12) and passed shell (1) and be connected in the locomotive selector;

Described ratchet (5) end face is fixed in driven gear (4) end face, be engaged with ratchet (14) on ratchet (5) tooth, described ratchet (14) center is provided with pawl axis (15), pawl axis (15) one end bearings are in spiral spring fixed plate (6), and the other end stretches out in the outer starting end (151) of doing of shell (1);

Described spiral spring (7) the inner is connected in rotating shaft (2), and spiral spring (7) outer end is fixed on the spiral spring fixed plate (6);

Be evenly equipped with at least two rotatable starting dogs (16) on the end face of described starting dog seat (8), be provided with the starting dog fixed plate (17) that is fixedly installed in the rotating shaft (2) between the starting dog (16), be stamped the pawl dish (18) that is coaxially installed on the mandrel (3) on the starting dog seat (8), described pawl dish (18) side is equipped with friction plate (19) and pad (20) successively, and pawl dish (18) outer wall is provided with and the corresponding pawl mouth of starting dog (16) (181).

2. air-cooled diesel engine safety starter as claimed in claim 1; it is characterized in that: described starting end (151) top is covered with a containment vessel (21); have starting hole (211) on the described containment vessel (21); described starting hole (211) is over against starting end (151) top; be hinged with the shielding plate (22) that is used to block starting hole (211) in containment vessel (21) inside; described shielding plate (22) end is connected to second backguy (23), and second backguy (23) other end passes containment vessel (21) and is connected in the locomotive selector.

3. air-cooled diesel engine safety starter as claimed in claim 1, it is characterized in that: fixed installation two pieces of bearing pins (24) on ratchet (5) end face, two pieces of bearing pins (24) are about the revenue centre symmetry of ratchet (5), the end face of described driven gear (4) is provided with two arc-shaped slots (41) about the revenue centre symmetry of driven gear (4), and described ratchet (5) is inlaid in the corresponding arc-shaped slot (41) by described two pieces of bearing pins (24).

4. air-cooled diesel engine safety starter as claimed in claim 1, it is characterized in that: fixed installation two pieces of bearing pins (24) on driven gear (4) end face, two pieces of bearing pins (24) are about the revenue centre symmetry of driven gear (4), the end face of described ratchet (5) is provided with two arc-shaped slots (41) about the revenue centre symmetry of ratchet (5), and described two pieces of bearing pins (24) are inlaid in the corresponding arc-shaped slot (41).

5. as claim 3 or 4 described air-cooled diesel engine safety starters, it is characterized in that: the central angle of described arc-shaped slot (41) is 80 ~ 120 °.

6. air-cooled diesel engine safety starter as claimed in claim 1 is characterized in that: described starting dog seat (16) is connected for profile with rotating shaft (2) or key connects.

7. air-cooled diesel engine safety starter as claimed in claim 1 is characterized in that: described starting dog (16) has 2, and described pawl mouth (181) has 2.

8. air-cooled diesel engine safety starter as claimed in claim 1 is characterized in that: described pretension gear (9) is connected for integral type or by key with pre-mandrel (10).